Prefab shelters used by the Confederacy of Independent Systems
Shelters of the prefab variety represent a type of structure made of carbon that various civilizations employed to provide assistance to their populations. These structures were erected by droid labor, or by organic beings like the Glurrgs. Despite the Trade Federation's capacity to construct and utilize prefab centers, they didn't frequently resort to them, given their widespread use of droids. Naboo's native sentient species, the Gungans, constructed their prefab shelters in underwater environments. The Grand Army of the Republic was able to significantly increase its numbers due to their prefab shelters, surpassing the capabilities of other factions.
Prefab shelters are featured in the video game Star Wars: Galactic Battlegrounds, which came out in 2001, and its expansion pack from 2003. While other civilizations needed to build structures to support their armies, the Trade Federation did not, although Federation shelters do make an appearance in the game.